Apaf-1, NT (Apoptosis Protease Activating Factor-1)

Apoptosis is related to many diseases and induced by a family of cell death receptors and their ligands. Cell death signals are transduced by death domain containing adapter molecules and members of the caspase family of proteases. The mammalian homologues of the key cell death gene CED-4 in C. elegans has been identified recently from human and mouse and designated Apaf1 (for apoptosis protease-activating factor 1)(1,2). Apaf1 binds to cytochrome c (Apaf2) and caspase-9 (Apaf3), which leads to caspase-9 activation. Activated caspase-9 in turn cleaves and activates caspase-3 that is one of the key proteases, being responsible for the proteolytic cleavage of many key proteins in apoptosis(3). Apaf1 can also associate with caspase-4 and caspase-8(4). Apaf1 is ubiquitously expressed in human tissues(1). \n\nApplications: \nSuitable for the detection of Apaf1 by Western blot(5). Whole cell lysate from HeLa cells can be used as positive control and a 130kD band is detected.\n\nRecommended Dilution: \nWestern blot: 1:1000 to 1:2000\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and add glycerol (40-50%). Freeze at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

A2298-65A

Size

100ug

Applications

WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a liquid in PBS, pH 7.2, 0.02% sodium azide.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Zou H, Henzel WJ, Liu X, Lutschg A, Wang X. Apaf-1, a human protein homologous to C. elegans CED-4, participates in cytochrome c-dependent activation of caspase-3. Cell 1997; 90:405-13 2. Cecconi F, Alvarez-Bolado G, Meyer BI, Roth KA, Gruss P. Apaf1 (CED-4 homolog) regulates programmed cell death in mammalian development. Cell 1998; 94:727-37 3. Li P, Nijhawan D, Budihardjo I, Srinivasula SM, Ahmad M, Alnemri ES, Wang X. Cytochrome c and dATP dependent formation ofApaf-1/caspase-9 complex initiates an apoptotic protease cascade. Cell 1997; 91:479-89 4. Hu Y, Benedict MA, Wu D, Inohara N, Nunez G. Bcl-XL interacts with Apaf-1 and inhibits Apaf-1-dependent caspase-9 activation. Proc Natl Acad Sci USA 1998; 95:4386-91 5. Apoptosis is suspended in muscle of mitochondrial encephalomyopathies. Koji Ikezoe, Masahiro Nakagawa, Chuanzhu Yan, Jun-ichi Kira, Yu-ichi Goto and Ikuya Nonaka. Acta Neuropathol

Additional Info

Human, mouse and rat reactive. \n